Remove unneeded type casts

cpu_physical_memory_read, cpu_physical_memory_write take any pointer
as 2nd argument without needing a type cast.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/hw/dma/xilinx_axidma.c b/hw/dma/xilinx_axidma.c
index 1c23762..bc62664 100644
--- a/hw/dma/xilinx_axidma.c
+++ b/hw/dma/xilinx_axidma.c
@@ -197,7 +197,7 @@
 {
     struct SDesc *d = &s->desc;
 
-    cpu_physical_memory_read(addr, (void *) d, sizeof *d);
+    cpu_physical_memory_read(addr, d, sizeof *d);
 
     /* Convert from LE into host endianness.  */
     d->buffer_address = le64_to_cpu(d->buffer_address);
@@ -215,7 +215,7 @@
     d->nxtdesc = cpu_to_le64(d->nxtdesc);
     d->control = cpu_to_le32(d->control);
     d->status = cpu_to_le32(d->status);
-    cpu_physical_memory_write(addr, (void *) d, sizeof *d);
+    cpu_physical_memory_write(addr, d, sizeof *d);
 }
 
 static void stream_update_irq(struct Stream *s)